DIFF Subgroup
A61K 31/215 of carboxylic acids
Introduced: July 1974
Full Title
Medicinal preparations containing organic active ingredients > Esters, e.g. nitroglycerine, selenocyanates > of carboxylic acids
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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- A61K 31/216 of acids having aromatic rings, e.g. benactizyne, clofibrate since 2000 IPC+CPC Available in IPC and CPC
- A61K 31/235 having an aromatic ring attached to a carboxyl group since 1974 IPC+CPC Available in IPC and CPC
- A61K 31/25 with polyoxyalkylated alcohols, e.g. esters of polyethylene glycol since 1974 IPC+CPC Available in IPC and CPC